US 12,323,632 B2
Image coding device and method for controlling loop filtering
Hendry Hendry, Seoul (KR); Seethal Paluri, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/777,370
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Nov. 17, 2020, PCT No. PCT/KR2020/016137
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/101200, PCT Pub. Date May 27, 2021.
Claims priority of provisional application 62/937,234, filed on Nov. 18, 2019.
Prior Publication US 2022/0417564 A1, Dec. 29, 2022
Int. Cl. H04N 19/82 (2014.01); H04N 19/103 (2014.01); H04N 19/117 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/167 (2014.01); H04N 19/172 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/82 (2014.11) [H04N 19/103 (2014.11); H04N 19/117 (2014.11); H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/167 (2014.11); H04N 19/172 (2014.11); H04N 19/70 (2014.11)] 3 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, comprising:
obtaining image information including residual information, information related to virtual boundaries and prediction related information through a bitstream;
generating residual samples based on the residual information;
deriving prediction samples based on the prediction related information;
generating reconstructed samples of a current picture, based on the prediction samples and the residual samples; and
generating modified reconstructed samples, based on an in-loop filtering process for the reconstructed samples,
wherein the image information includes a sequence parameter set (SPS),
wherein the information related to the virtual boundaries includes a virtual boundaries enabled flag,
wherein based on the virtual boundaries enabled flag, the SPS includes an SPS virtual boundaries present flag,
wherein based on a value of the virtual boundaries enabled flag being 1 and a value of the SPS virtual boundaries present flag being 1, the information related to the virtual boundaries is included in the SPS,
wherein based on the value of the virtual boundaries enabled flag being 1 and the value of the SPS virtual boundaries present flag being 0, the information related to the virtual boundaries is not included in the SPS, and
wherein the in-loop filtering process is performed across the virtual boundaries, based on the virtual boundaries enabled flag.